Technologies

Chemical Sciences

Title:	Process for Production of High Purity Magnesia
Area:	Chemical Sciences
Focus Area:	Production of Magnesia
Patent:	AU2006337405, EP1986957, IN260199, JP5102780, US7811535
Social Benefits:	Superior refractory properties at high temperature operations , Suitable for LD converter for primary steelmaking , High purity magnesia is suitable for extraction of Magnesium metal, Effluent to comply with statutory norms, Conservation of fresh water
Developing Agency:	CSIR-Central Salt & Marine Chemicals Research Institute (CSMCRI), Gujarat
Technology Readiness Index:	Technology Development
Email:	director@csmcri.res.in
Website Link :	http://www.csmcri.org
Source (more info) :	https://t.ly/l_sb

Brief Description

Description :

The proposed process involves reaction of MgCl2 rich brine obtained in course of recovering KCl from SEL in the integrated SOP process with liquid ammonia to precipitate magnesium hydroxide and subsequent calcination of the latter to produce high purity magnesia. The aqueous ammonium chloride stream is treated with lime to regenerate recycle ammonia in magnesium hydroxide precipitated process.